// Copyright © 2022 The Things Network Foundation, The Things Industries B.V.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/**
 * Performs left-to-right function composition.
 *
 * @template T
 * @param {Array<(arg: T) => T>} funcs - A list of unary functions.
 * @returns {(arg: T) => T} - A single function composed from `funcs`.
 */
const pipe = (...funcs) =>
  funcs.reduce(
    (a, b) =>
      (...args) =>
        a(b(...args)),
    arg => arg,
  )

export default pipe
